Use Case Diagrams of 'Online Fresh Food Store'

Use cases are used in almost every project.  The are helpful in exposing requirements and planning the project. During the initial stage of a project most use cases should be defined, but as the project continues more might become visible.

Use cases are a relatively easy UML diagram to draw, but this is a very simplified example.  This example is only meant as an introduction to the UML and use cases.  If you would like to learn more see the Resources page for more detailed resources on UML.

Start by listing a sequence of steps a user might take in order to complete an action.  For example a user placing an order with a sales company might follow these steps.
1. Browse catalog and select items.
2. Call sales representative.
3. Supply shipping information.
4. Supply payment information.

5. Receive conformation number from salesperson.